509490495733 has 2 divisors, whose sum is σ = 509490495734. Its totient is φ = 509490495732.

The previous prime is 509490495673. The next prime is 509490495739. The reversal of 509490495733 is 337594094905.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454414854609 + 55075641124 = 674103^2 + 234682^2 .

It is a cyclic number.

It is not a de Polignac number, because 509490495733 - 2⁹ = 509490495221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (509490495739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254745247866 + 254745247867.

It is an arithmetic number, because the mean of its divisors is an integer number (254745247867).

Almost surely, 2^509490495733 is an apocalyptic number.

It is an amenable number.

509490495733 is a deficient number, since it is larger than the sum of its proper divisors (1).

509490495733 is an equidigital number, since it uses as much as digits as its factorization.

509490495733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18370800, while the sum is 58.

The spelling of 509490495733 in words is "five hundred nine billion, four hundred ninety million, four hundred ninety-five thousand, seven hundred thirty-three".